Hi Bio
My Biggest slots win was also on marvel jackpots a few years ago, i won the $57,000 progressive playing £2.25 stake on Ghost Rider.
The best standard slot win was on a slot called Rome and Glory which is similar to book of dead, started playing a £1 stake and won £1000 upped stake to £4 and hit 2 bonuses where i had re-triggers on both one with the top symbol and one with second symbol, hit 5 on top symbol and 2 x 5 symbol on other bonus total £37,000.
Still living on the memory about 5 years ago 🙂
Good luck with the slots